CODEWITHSUNDEEP
iphoneiosxcode4.3
sai
sai

Reputation: 21

Issue when calling a method with return type “void” in same file

I am getting an issue when calling a method of return type -(void) in same class

Issue is:Instance method - someMethodName not found (return type defaults to 'id')

Upvotes: 0

Views: 84

Answers (2)

Benedict Cohen
Benedict Cohen

Reputation: 11920

The problem is that Xcode can't find a declaration for the method. In most recent version of Xcode you don't need to provide a declaration for a method if the implementation is in the same .m that you are calling it from. e.g.:

//ExampleClass.m
@implementation ExampleClass
-(void)aMethod {
    [self anotherMethod]; //Xcode can see anotherMethod so doesn't need a declaration.
}

-(void)anotherMethod {
    //...
}
@end

However in earlier version of Xcode you would need to provide a declaration. You can do this in the @interface in .h file:

//example.h
@interface ExampleClass : NSObject
-(void)anotherMethod;
@end

The problem with putting the declaration in the .h is that all other class can see the method, which may cause problems. To get around this you can declare a class continuation within the .m:

//ExampleClass.m
@interface ExampleClass ()
-(void)anotherMethod;
@end

@implementation ExampleClass
   //...
@end

Upvotes: 0

Inder Kumar Rathore
Inder Kumar Rathore

Reputation: 39978

Declare someMethodName in your .h file.

Upvotes: 1

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